The word "can" talks about the ability to do something. So, lying about your GPA in college on your resume is a matter of risk, and even if you have a very good ability to lie, be ready to bear the consequence. The reason is that you will not be able to get away with the lie. It is actually a bad thing to lie, and lying is not encouraged at all, especially when it comes to your career and academics.
There are a few other ways by which your employer or interviewer can get to know your GPA later. One of the simplest ways is if you are asked to provide your credentials, which might include your school details. And one major way employers use in knowing people's GPA is through your transcript.
They can easily request that from your school, and they will get to know your GPA. So, if you had lied earlier, which simply means you are at the risk of bearing whatever consequences that might be laid down by your employer. You will most likely end up losing the job.