You have 3 choices. 1) INSIST the builder 'clean up' the glue. Politely tell him you DON'T want to wait for it to 'wear off'. Tell him it's NOT suppose to be there in the first place. Besides, it won't wear off - It's glue. 2) Contact Pergo and bite the bullet. 3) Live with the glue.
If I were you which I'm not, but if I were, I'd be sticking to #1. But do yourself a favor - TELL him what Pergo is recommending for use to clean up the glue. If he uses the WRONG stuff, it could 'damage' your floor AND VOID your Warranty. Politely, remind him of that.
You can take your chances and see if there's an after-market glue cleaner for less money. Again, if it 'damages' the floor you (or your builder) will have a 'problem'. I'd stick to Option #1 still.
My best to ya and hope this helps.
Jay J -Moderator
PS: Stick around for a few days and see if anyone else answers your Post ...