One player had sent tweets to members of the opposing team throughout the night and into the early hours of the next day following the 34-23 loss at AAMI Park.
In one tweet, the player made it clear he was out socialising.
On arrival at Auckland airport on Friday, the same player tweeted that he and a teammate weren't feeling too good.
The tweet has since been removed from the player's account.
The decision by some of the Blues' players to go out after the loss to a team which before the match were last on the table and one place below them, will not go down well with their supporters. Neither will the suggestion that some had overindulged with a game against the Sharks at Eden Park a week away.
Even if there is an innocent explanation, the perception is not a good one.
Those sentiments will be compounded by the Blues' one-win, five-loss start to the season and the fact few of the players are performing well. Only prop Tony Woodcock could be pleased with his performance in last Thursday night's match, a defeat which marked the lowest point of the Blues' season.
Lam's side has had discipline problems already this season, with Peter and Francis Saili suspended for two weeks for breaching a curfew while the team was in South Africa, but he said he was happy with how his players conducted themselves in Melbourne in Thursday night.
"I can't really comment on what has been said on Twitter because I haven't seen it, but I know after games we're no different to other teams, they'll catch up with different guys and some guys will go out and not drink and some guys will go out and have a couple of drinks,'' Lam said.
"All I know is that they showed up the next morning and they were fine and we had no issues.''
Asked whether the Blues had an alcohol policy, Lam said: "The key thing is to look after yourselves, make good choices. When we're in Africa sometimes the boys will make a call that there's a curfew and the security guys are with them and will track them. It's a week to week thing and it's all about making good decisions.''
When pressed on whether it was a good look for players to be out after such a disappointing loss during the season, Lam said he didn't think his players would have been out late because bars in Melbourne closed at midnight due to Good Friday.
"I wouldn't draw too much into that. We got back to the hotel at 11 [after the game]. Everything is shut down. The guys catch up back at the hotel. Comments are made and stuff and possibly I'll have a look at it but everything shut at midnight.''
Meanwhile, Lam has to prepare a team for what will be a tough battle against the Sharks, who dominated the Hurricanes in their last match in all areas except the scoreboard.
Asked whether fans will turn up on Friday night, Lam - who said he was ignoring criticism of his and the team's performances from outside the franchise - added: "They have every right not to. We understand that but we can't control it. And nothing I say will change their opinions, the only thing that will change it is us winning and that's what we have to work towards.''
