I've just heard this on a video and am wondering whether this is grammatically correct. Or as far as it's a spoken mistake you can use it?
For me, some defines a few and for asking a card I'd rather say "an ID", isn't it so?
While ID is uncountable and "some" doesn't specify the number, in this context it usually means that only one form of identification is needed. If more than one ID document was needed, the speaker would specify that.