Utah can charge me with whatever the fuck they want. If I’m not in Utah or doing business with Utah and ignore them what are they doing to do about it?
If you live in the US then the Full Faith and Credit Clause of the U.S. Constitution, which is enforced with under 28 U.S.C. § 1738, requires that all states recognize and enforce valid final judgements from sister states.
If Utah sues you for violating this law you could show up to court to contest the case or they would win a default judgement.
After the State had a judgement they could seek a writ of execution or writ of garnishment to seize your wages or put liens on your properties.
If you don't live in the US, and don't plan to ever work or own property in the US then you're functionally immune to such judgements.