Tax grab maybe , but my first thought is , now they're going to have the legal right to arbitrarily pull you over and search , to be sure you have the equipment .....arbitrary
/ˈɑːbɪt(rə)ri/
adjective
adjective: arbitrary
1.
based on random choice or personal whim, rather than any reason or system.
"an arbitrary decision"
synonyms: capricious, whimsical, random, chance, erratic, unpredictable, inconsistent, wild, hit-or-miss, haphazard, casual; More
unmotivated, motiveless, unreasoned, unreasonable, unsupported, irrational, illogical, groundless, unjustifiable, unjustified, wanton;
discretionary, personal, subjective;
rarediscretional
"an arbitrary decision from the top"
antonyms: rational, reasoned
2.
(of power or a ruling body) unrestrained and autocratic in the use of authority.
"a country under arbitrary government"
synonyms: despotic, tyrannical, tyrannous, peremptory, summary, autocratic, dictatorial, authoritarian, draconian, autarchic, anti-democratic